其定义
A solid-solution series: niobium-rich at one end, tantalum-rich at the other. Source of both metals, and a designated conflict mineral.
矿石矿物
A solid-solution series: niobium-rich at one end, tantalum-rich at the other. Source of both metals, and a designated conflict mineral.
A solid-solution series: niobium-rich at one end, tantalum-rich at the other. Source of both metals, and a designated conflict mineral.
